beholder vs signatory

beholder

noun
  • Someone who observes or beholds; an observer or spectator. 

  • A fictional monster in roleplaying games, a floating orb of flesh with a large mouth and many eyes on stalks. 

signatory

noun
  • One who signs or has signed something. 

adj
  • Signing; joining or sharing in a signature. 

  • Relating to a seal; used in sealing. 

How often have the words beholder and signatory occurred in a corpus of books? (source: Google Ngram Viewer )